I’m one of the new AMD users as of yesterday. Took some fiddling around but I’ve got my new machine up and running. I had issues with my i9 being unstable and no patch was going to fix it. Pretty sure it was physically damaged from the manufacturing defects.
So AMD it was. So far so good!
PLA is widely used as a medical plastic and its normal decomposition is into lactic acid.
Even if it is just being atomized down into smaller and smaller particles it’s safer for you than any other common plastic.
The colorants added are the only risk